Concentrations of luteinizing hormone in ovariectomized ewes and the effect of disturbance, starvation and vascular cannulation |
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Authors: | H Hearnshaw I A Cumming J R Goding |
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Abstract: | Neither routine experimental procedures, including vascular cannulation and venipuncture, nor starvation or disturbance caused significant fluctuations in luteinizing hormone (LH) concentrations in ovariectomized ewes. Samples obtained at 5-min intervals revealed episodic LH releases occurring every 10-35 min. Hourly sampling over 3 days revealed large LH variations but no distinct diurnal variation. |
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